2000 Ram 2500, 5.9 gas
"No start". Good spark, will start/run for a few seconds on starting fluid.
Near as I can tell fuel pump has quit. Can't hear it running with key on, swapped relays in the power control box with no effect.

Before dealing with the hassle of replacing the fuel pump I want to make sure it's actually getting voltage and there's no wiring fault somewhere.
Is there an "easy" way to locate the wires powering the fuel pump somewhere accessible where I can check for voltage? I can't find any info on this.

Tank 2/3 full and I don't have lift so looks as though I need to unbolt the bed and tilt it up/or slide it back.

 

There should be wires going to the pump but I don't remember where they are exactly. Should be able to see the loom coming off the tank. I just did the relay and aural test to confirm mine since I drive it daily and knew that suddenly not starting was probably the fuel. Tilting the bed works but it's not easy. I jacked up slowly while putting boards underneath until I could squeeze in. Not safe or recommended but it worked for me. Make sure you get a good brand.

 

Could try trying to start it, and having someone else thump the tank a couple times. If that works, new pump time. If it doesn't.... I *think* you can see the connector on top of the tank for the fuel pump and such. Might be able to reach in there, and unplug it to test. Otherwise, need to drop the tank, or lift the bed.

 

You can see the connector on top of the fuel tank but getting there is a different story. I'm lazy so I'd check power to pin 30 of the relay and then use a test light between pin 30 and pin 87. If that lights up there is continuity all the way from pin 87 through the wiring and the pump motor windings to ground. You can also briefly jump pin 30 to pin 87 and listen for the pump in case the problem is with the relay not being activated for some reason.

 

Thanks- exactly what I was looking for. Service Manual references testing using an LCS adapter.
All tests fine, so fuel pump it is...